Answer:
Sultan Hasanudi's efforts against the Dutch were when the Aru Palaka rebellion occurred, which received assistance from the Dutch, Sultan Hasanudin deployed 7,000 troops to quell the rebellion and expel the Dutch. The battle lasted for almost a year. Because of his persistence against the Dutch, Sultan Hasanuddin was given the nickname Rooster of the East.
Explanation:
Answer:
- the first direct detection of gravitational waves came in 2015
- gravitational waves are predicted to travel through space at the speed of light
- the existence of gravitational waves is predicted by Einstein's general theory of relativity
Explanation:
The gravitational waves are waves that are produced by the objects, and depending on the mass of the object they can be stronger or weaker in their influence.
These waves have been in the minds of the scientists for more than a century now, with Einstein predicting them in his theory of relativity. The only problem with these waves was that there was no proof of them. The proof finally came in 2015 when these waves were detected from the first time, with two black holes to be thanked for that as they were the source of them.
These waves are predicted to be able to travel with the speed of light through space when they have small amplitudes.
Answer:
An ethnic category or group is a group of people identify with each other. Typically based on language, history, ancestry, culture
Explanation:
What are the examples?
Answer: None, it would be 24 hours of darkness
Explanation:
This is because December 21st marks the astronomical start of winter for the northern hemisphere with the winter solstice. During this season the days are shorter than the nights, and as we get closer to the North Pole, we will have up to 24 hours of darkness.
That is why on December 21st, the sun is not visible for 24 hours and the next days (the closer it is to the north pole) it will stay that way. Therefore, the inhabitants of this area will have longer periods of darkness.
